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Papers by Firas Alwade
Journal of Research in Medical and Dental Science, 2019
Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It ... more Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It is expected that nanotechnology will be developed at several levels: Materials, devices and systems. The nanomaterial's level is the most advanced at present, both in scientific knowledge and in commercial applications. A decade ago, nanoparticles were studied because of their size-dependent physical and chemical properties. Aim: To consider magnetite nanoparticles, their applications, synthesis and characterization methods; to synthesis magnetite nanoparticles; to characterize magnetite nanoparticles by different techniques. Materials and methods: The most conventional method for obtaining Fe 3 O 4 or γ-Fe 2 O 3 is by co-precipitation. This method consists of mixing ferric and ferrous ions in a 1:2 molar ratio in highly basic solutions at room temperature or at elevated temperature. Results and discussion: Particle size is measured by zetasizer. The average distribution of magnetic nanoparticles is 11 ± 2 nm. Thus, we can know size of particle. Reveal size, shape and distribution on the solution are measured by transmission electron microscopy (TEM). The following distribution was calculated from the distribution of NPs the average 13 ± 2 nm. Thus, we see size and shape nanopartical. The ζ (Zeta) potential of magnetite nanoparticles was-24 ± 2 mV at pH 6.5 ± 0.1. The size distribution of nanoparticles was studied by the methods of dynamic light scattering. Conclusion: The resulting nanoparticles were measured using dynamic scattering light and transmission electron microscopy. Average values respectively, amounted to 11 ± 2 nm and 13 ± 2 nm. Zeta has also been measured. Its average value was-24 ± 2 mV at pH=6.5 ± 0.1. What is caused by the presence of carboxylic groups of citric acid on surface of nanoparticles? Such a value of the zeta potential is sufficient for prevent the adhesion of nanoparticles.
Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It ... more Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It is expected that nanotechnology will be developed at several levels: Materials, devices and systems. The nanomaterial’s level is the most advanced at present, both in scientific knowledge and in commercial applications. A decade ago, nanoparticles were studied because of their size-dependent physical and chemical properties. Aim: To consider magnetite nanoparticles, their applications, synthesis and characterization methods; to synthesis magnetite nanoparticles; to characterize magnetite nanoparticles by different techniques. Materials and methods: The most conventional method for obtaining Fe3O4 or γ-Fe2O3 is by co-precipitation. This method consists of mixing ferric and ferrous ions in a 1:2 molar ratio in highly basic solutions at room temperature or at elevated temperature. Results and discussion: Particle size is measured by zetasizer. The average distribution of magnetic nanopartic...
International Journal of Medical Research and Health Sciences, 2019
An extensive range of biocompatible materials has been used in patients. Diverse biomedical appli... more An extensive range of biocompatible materials has been used in patients. Diverse biomedical applications demand different properties of materials, implicating mechanical, physical, chemical, and biochemical properties. Amongst biocompatible ceramics, zirconia-based biomaterials are considered as a biomaterial for retexture of hard tissues related to their excellent mechanical properties and good biological and chemical compatibilities. Zirconia is used in dentistry and in orthopedics, specifically in the area of femoral heads for total hip replacements.
i am work in physics lab and this is sample of 1st year student in dentistry school prepare te... more i am work in physics lab and this is sample of 1st year student in dentistry school prepare test for them
Journal of Research in Medical and Dental Science, 2019
Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It ... more Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It is expected that nanotechnology will be developed at several levels: Materials, devices and systems. The nanomaterial's level is the most advanced at present, both in scientific knowledge and in commercial applications. A decade ago, nanoparticles were studied because of their size-dependent physical and chemical properties. Aim: To consider magnetite nanoparticles, their applications, synthesis and characterization methods; to synthesis magnetite nanoparticles; to characterize magnetite nanoparticles by different techniques. Materials and methods: The most conventional method for obtaining Fe 3 O 4 or γ-Fe 2 O 3 is by co-precipitation. This method consists of mixing ferric and ferrous ions in a 1:2 molar ratio in highly basic solutions at room temperature or at elevated temperature. Results and discussion: Particle size is measured by zetasizer. The average distribution of magnetic nanoparticles is 11 ± 2 nm. Thus, we can know size of particle. Reveal size, shape and distribution on the solution are measured by transmission electron microscopy (TEM). The following distribution was calculated from the distribution of NPs the average 13 ± 2 nm. Thus, we see size and shape nanopartical. The ζ (Zeta) potential of magnetite nanoparticles was-24 ± 2 mV at pH 6.5 ± 0.1. The size distribution of nanoparticles was studied by the methods of dynamic light scattering. Conclusion: The resulting nanoparticles were measured using dynamic scattering light and transmission electron microscopy. Average values respectively, amounted to 11 ± 2 nm and 13 ± 2 nm. Zeta has also been measured. Its average value was-24 ± 2 mV at pH=6.5 ± 0.1. What is caused by the presence of carboxylic groups of citric acid on surface of nanoparticles? Such a value of the zeta potential is sufficient for prevent the adhesion of nanoparticles.
Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It ... more Introduction: Nanotechnology is enabling technology that deals with Nano-meter sized objects. It is expected that nanotechnology will be developed at several levels: Materials, devices and systems. The nanomaterial’s level is the most advanced at present, both in scientific knowledge and in commercial applications. A decade ago, nanoparticles were studied because of their size-dependent physical and chemical properties. Aim: To consider magnetite nanoparticles, their applications, synthesis and characterization methods; to synthesis magnetite nanoparticles; to characterize magnetite nanoparticles by different techniques. Materials and methods: The most conventional method for obtaining Fe3O4 or γ-Fe2O3 is by co-precipitation. This method consists of mixing ferric and ferrous ions in a 1:2 molar ratio in highly basic solutions at room temperature or at elevated temperature. Results and discussion: Particle size is measured by zetasizer. The average distribution of magnetic nanopartic...
International Journal of Medical Research and Health Sciences, 2019
An extensive range of biocompatible materials has been used in patients. Diverse biomedical appli... more An extensive range of biocompatible materials has been used in patients. Diverse biomedical applications demand different properties of materials, implicating mechanical, physical, chemical, and biochemical properties. Amongst biocompatible ceramics, zirconia-based biomaterials are considered as a biomaterial for retexture of hard tissues related to their excellent mechanical properties and good biological and chemical compatibilities. Zirconia is used in dentistry and in orthopedics, specifically in the area of femoral heads for total hip replacements.
i am work in physics lab and this is sample of 1st year student in dentistry school prepare te... more i am work in physics lab and this is sample of 1st year student in dentistry school prepare test for them